Standing-valve attachment for oil pumps



Aug. 14, 1923.

F. J. WRIGHT ET AL.

STANDING VALVE ATTACHMENT FOR oIL PUMPS Filed Jan. 20. 1921 ll,|.lll|llllllilllllll o o OMC Owo j Iatented le, i923.

FRANKLIN J. 'wnrenner cantanti), ann aai/ins ,onnrronnrn.

t. Bennie, Aon Bnrrnasrrnrin,

's rreunrNG-venvn ATTACHMENT rea oir. ruiurs.

Application filed January 20, 1921.` Serial No. L38,661.

To all lw/wm t may] concern.:

Be 1t known that we, FRANKLIN JWVRIGHT and JAMES L. BAKER, citizens fol the Unitedl States,'residing at Oakland and Bakersfield, respectively, 1n the countiesro-Alameda and Kern, respectively, and'State of California,

Vhave inventedcertain new and useful im- V provements in Standing-Valve Attachments for Oil Pumps, of which speciiicatlon. .Y Y

YUurv invention is Jan improved oil well the Jfollowing` is a n pump which is simple in construction and .positive and Veiiicient in .its operation. Referring to the annexed drawing; in which our invention 1s illustrated and .which forms a part of this specification.

Figure 1 is avertical longitudinal section of an oil well. withv our kpump' mounted Y casing 1 is mounted the usual oil well pump casing 5 in which our mounted.V y

Our pumpincludes a casing 7 which slidably fits within the pump casing 5. A head V8 screws into the lower end of said pump. :casing and has an opening 9 therein through which extends a tube V10. Y A conical mouth 11 is coupled to the lower end of the tube pump 6 is detachably Y '10 by acoupling12 which screws onto the v the mouth, said mouth being adapted torest lower end of the tube and on the upperend of `upon a conicalsleeve seat 13 in the lower end ofthe` pump casing 5. On the upper end ofthe tube A10 is mounted a Vvalve 1l,`which includes a cage 15, a sleeve 16 screwed into a threaded opening 17 in the bottom ofsaid cage, and provided withV seat 18 and a ball 19 adapted normally'to rest on said seat; said valvebeing coupled to the tube 10 by a coupling' 20 which screws on the upper end of said tube and on the lower end of the sleeve 16 against an external flange 21 on said 'sleeve which sleeve also engages the lower end of the cage 15. The coupling 20 and flange 21 fit the interior or the casing 7 closely to prevent .oil above the valve 1li fromY dropping' baclr into the casing. 'A

valve 25 is connected to theupper end ofV Y the pump casingr', which valve comprises a cage 26 which screws into the upper end of said pump casing, and a ball 27 which normally rests on a seat 28 in said cage and closes the ,upper end of the pump casing.

On the top of the cage 26 is formed a threaded stud 29.v A plunger rod 30 extends downwardly through the pump casing' 5 and has an enlarged internally threaded end 31 which screws on the stud 29.

As the rod 30 is reciprocated, the valve 25 and pump casing 7 are'moved up and down,

the mouth 11, tube 10 and valve 14: remain* ing stationary. As the valve 25 moves upwardlyaway from the valve 1 4on the sucsaid valves and oilis drawn from the well through the mouth 1l, tube 10 and valve 14 which opens, into said space. The oil in passing through the tube 10 has a high velocity imparted to it, so that allgravel and sand is thrown clear of the ball 19, which prevents any possibility of said ball sticking in the cage 15. When the valve 25 `moves downwardly on the` compression stroke of the pump, the oil between said valve and the valve 14 is forced upwardlyl bythe piston action of theV coupling 2O and flange 21through the valve 25, (the ball 27 lifting oit its seat) into the pump housing 5 above the pump 6. Continued operation of the pump in this manner pumps the oil out of the well through the pump casing 5.

The pump may be withdrawn from the casingl 5 bypullingl upwardly on the plunger 30 after it has been pulled to the end of the stroke et the pump so that the head8 engraues the' coupling 20.

Vl-lfa'ving described our invention, we claim: in an oil well pump, an outer pump casing," an inner pump casing; slidable in said outer. casingV and closely fitting said outer casing, a valve controllingthe upper end of said inner pump casing, a plunger rod connected to the topA of said valve and extending' through the top of said outer pump casing', a head screwed into the lower end of said inner casing and provided withv an opening therethrough, a tube extendingr loosely through said opening into saidinner casing,

a conical mouth, a threaded coupling which y screws on the lower end of said tube and the 'tion stroke-of the pump, a partial vacuum V1s created'in the increased space between bottom thereof, a -sleove adapted to be screwed nto'theV threaded oponng, a valve I seat and a ball adaptod to normally festn said seat and a coupling to connect the tubo to the Val-vie, a flange onV th sleeve,"tl1e'oou o vinto the casing., v

pling vand flange closely lttnvg' tho interior of the casing to prvontol dropping'bzpcl;

tures. Y Y

' nFRJA XNKLIN J. "WRIGHT JAMES "BAKERL- Y 

